config: rework validator configs (MystenLabs#1939)

This patch does a large rework of our validator configs. Specifically it
creates a single `ValidatorConfig` which represents all of the
configuration a Validator needs to start up. It also creates a
light-weight `ValidatorInfo` type which contains information we expect
to know about other validators (stake, public key, network address) and
will eventually be read from on-chain. This is a replacement for the
`AuthorityInfo` type which was a type that all validators have for all
other validators but included some odd information like the on-disk path
to a validator's db which other validators don't need to know about.

This patch also does an initial rework of creating a `NetworkConfig`
which is used when you want to create N validators to run locally.
There's still some additional work that will need to be done to make
this nicer for testing purposes but this is a good start.

Cargo.toml

@@ -1,5 +1,6 @@
 [workspace]
 members = [
+    "crates/sui-config",
     "crates/sui-network",
     "crates/x",
     "faucet",

crates/sui-config/Cargo.toml

@@ -0,0 +1,23 @@
+[package]
+name = "sui-config"
+version = "0.0.0"
+authors = ["Mysten Labs <[email protected]>"]
+license = "Apache-2.0"
+publish = false
+edition = "2021"
+
+[dependencies]
+anyhow = { version = "1.0.57", features = ["backtrace"] }
+serde = { version = "1.0.137", features = ["derive"] }
+serde_json = "1.0.80"
+rand = "0.7.3"
+dirs = "4.0.0"
+multiaddr = "0.14.0"
+debug-ignore = { version = "1.0.2", features = ["serde"] }
+tracing = "0.1.34"
+
+narwhal-config = { git = "https://github.com/MystenLabs/narwhal", rev = "23745f48103656eae4a4205d0b3edd53ad8894de", package = "config" }
+narwhal-crypto = { git = "https://github.com/MystenLabs/narwhal", rev = "23745f48103656eae4a4205d0b3edd53ad8894de", package = "crypto" }
+
+sui-framework = { path = "../../sui_programmability/framework" }
+sui-types = { path = "../../sui_types" }